Problems from Spotify Challenge 2011

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
All Just A Dream 1870 415 22% 0.05 288 204 71% 6.4
Cat Coat Colors 180 79 44% 0.00 75 66 88% 3.2
Imperial Measurement 1648 722 44% 0.00 653 604 92% 2.0
Peer Streaming 26 9 35% 0.04 14 9 64% 7.7
Playlist 343 48 14% 1.09 32 15 47% 9.1
Primary Register 1089 675 62% 0.00 594 555 93% 2.1
Square Pie 384 149 39% 0.07 38 29 76% 6.1
Wheel Game 119 15 13% 0.00 16 13 81% 6.7